A dishwasher includes a tub, a spray arm, a sump, a pump body, the pump body including a partition between first and second chambers, a communication hole in the partition that communicates with the first and second chambers, a pump flow path that connects the sump to the first chamber, an arm flow path that connects the spray arm to the second chamber, an impeller in the second chamber, a heating unit to heat water in the first chamber, a steam flow path that connects the first chamber to the tub, a connection flow path that connects the steam flow path to the arm flow path, and a flow path valve configured to close the steam flow path based on water being supplied to the connection flow path, and to open the steam flow path based on a lack of water being supplied to the connection flow path.

A dishwasher includes a tub, a spray arm, a sump, a pump body including a partition that partitions the pump body into a first chamber and a second chamber, a communication hole defined in the partition, a pump channel that connects the sump to the first chamber, an arm channel that connects the spray arm to an interior of the second chamber, an impeller located in the second chamber and configured to rotate to supply water to the arm channel, a heating unit configured to heat water stored in the first chamber, a steam channel that connects the first chamber to the tub, and a channel controller configured to, based on rotation of the impeller, supply water that passes through at least one of the sump, the pump channel, the second chamber, or the arm channel to the steam channel to close the steam channel.

Example intelligent dishwashing systems and methods are described. In one implementation, a system includes an imaging system configured to capture at least one image of an article of dishware. A processing system analyzes the at least one image to determine a presence and a location of a stain on the article of dishware. Responsive to determining the presence of a stain, a cleaning system is configured to clean the location of the stain on the article of dishware.

A method and dishwasher utilize one or more tubular spray elements that are both rotatable about longitudinal axes thereof and discretely directable by one or more tubular spray element drives between a plurality of rotational positions about the longitudinal axes thereof. Thus, through the provision of discretely directable tubular spray elements, fluid such as wash fluid and/or pressurized air may be focused in a wash tub, in many cases providing more efficient resource usage in the dishwasher.

Example intelligent dishwashing systems and methods are described. In one implementation, a system includes an imaging system configured to capture at least one image of an article of dishware. A processing system analyzes the at least one image to determine a presence and a location of a stain on the article of dishware. Responsive to determining the presence of a stain, a cleaning system is configured to clean the location of the stain on the article of dishware.

A method of controlling a dishwasher including a tub, at least one spray nozzle, a rack, and a microphone, includes: spraying, by the at least one spray nozzle, washing water while the at least one spray nozzle is rotating, analyzing a characteristic of a sound wave input to the microphone, the sound wave being generated based on the washing water colliding with one or more washing targets in the tub, determining whether a washing target made of a set material is present among the one or more washing targets based on the analyzed characteristic, determining, based on determining that the washing target made of the set material is present, a location in which the washing target made of the set material is present according to the analyzed characteristic, and reducing an amount of impact applied to the washing target made of the set material by the washing water.

A dishwasher (1), in particular a commercial dishwasher (1), which is in the form of a box-type dishwasher and has a treatment chamber (2) which can be closed and in which washware can be treated in accordance with a predefined or predefinable treatment program, wherein a washware detector apparatus (51) is designed to detect the type of washware to be, wherein the washware detector apparatus (51) has an optical identification system, which is oriented toward the washware to be treated, and an evaluation device, wherein the optical identification system is designed to record at least a portion of the light reflected by the washware to be treated as a reflection image, and wherein the evaluation device is designed to automatically distinguish between different types of washware on the basis of the recorded reflection image, wherein the extent of the reflection provides information about the type of washware.

An auxiliary gray water supply device captures used wash water from a commercial warewashing machine for supply to a pre-rinse station without substantial modification of the commercial warewashing machine. The captured wash water and treatment agent are delivered to a pre-rinse station for pre-rinsing of dishes that will be washed within the commercial warewashing machine.

A method and dishwasher utilize one or more tubular spray elements that are both rotatable about longitudinal axes thereof and discretely directable by one or more tubular spray element drives between a plurality of rotational positions about the longitudinal axes thereof. Thus, through the provision of discretely directable tubular spray elements, fluid such as wash fluid and/or pressurized air may be focused in a wash tub, in many cases providing more efficient resource usage in the dishwasher.

A control apparatus for a water flow is disclosed, which comprises an inlet connected to a water supply source; a discharge unit connected to a space where water is stored; a chamber for communicating the inlet with the discharge unit through a first communication unit connected to the inlet and a second communication unit connected to the discharge unit; a valve opening or closing the second communication unit; a first body fixed to any one of the inside of the inlet and the inside of the discharge unit; a first through hole provided to pass through the first body, forming a water flow; a second body fixed to the first body and located inside the first through hole; an elastic body fixed to the second body; a first support unit protruded from the first body to the elastic body, supporting the elastic body and forming a space between the elastic body and the first body to enter water the first through hole; and a second support unit protruded from the first body to the elastic body, selectively supporting the elastic body in accordance with a water pressure.